Gollum...rightly concludes: The hobbit Bilbo Baggins of the Shire has stolen it. So begins the hunt over mountains and through deserts, take years and cost many lives, until this miserable creature, finally, the fate of Middle-earth holds in his hand.

(emphasis mine)

So will we see this in the films, or do you think this was just written for the action figure to tell more of Gollum's story that won't actually be shown in the Hobbit?